Steering and brakes help

[Toro]

It seems no matter how much I try to anticipate, I always end up needing something else I didn't intend to or think of once I get started. For example, I just finished the brakes on my 72 Blazer which started off with just replacing the rubber lines on front and rear. That quickly led to replacing steel lines too.., new steel lines from front right and left going to brass T (original front steel line from prop valve to T was fine) and new steel lines from the rear rubber hose junction to rear left and right. The rear steel line from prop valve to bracket above rear axle was fine. There is also a in-line union in the rear steel line right above the front right axle against the frame rail. So if one side of those lines is okay, you could replace one side or the other (or both). All that to say, after that work I thought it was all good, but still had issues, and ultimately ended up needing a new master cylinder too.